{"permit":"IN0050717","name":"NORFOLK SOUTHERN RAILWAY CO - ELKHART YARD","state":"IN","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/IN0050717"},"about":[{"label":"What it is","text":"Railroads, Line-Haul Operating (EPA's industry listing)"},{"label":"Where","text":"Elkhart, Indiana","href":"https://www.openstreetmap.org/?mlat=41.666083&mlon=-86.032194#map=14/41.666083/-86.032194"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Jul 31, 2027"}],"renewal_due":{"date":"2027-02-01","when":"Feb 1, 2027 (in 89 days)","urgent":false},"renewal_check":{"offered_because":"application_due_within_18_months","application_due":"2027-02-01","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/IN0050717#renewal","says":"Each limit a renewal could tighten or add, from the state's water-quality standards and the federal rules for this kind of discharge, each cited to its rule, beside EPA's 12-month record; a rule we do not hold is named, never guessed. A person orders it on the permit's page with their email; it is sent by email within 5 business days."},"sector":{"state":"IN","sic":"40","permits":18,"list":"https://passage-data.com/api/v1/permits?state=IN&sic=40","page":"https://passage-data.com/dmr/s/IN/40"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"DIESEL LOCOMOTIVE TERMINAL"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"DIESEL LOCOMOTIVE TERMINAL"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily 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your user the plant's raw daily results? fill_dmr computes the period's DMR values from them, each with the rows it came from.","arguments":{"permit":"IN0050717"},"needs":{"period_end":"The reporting period: its month (2026-09).","rows":"The plant's results: [{date, parameter, value, unit, point}, ...]; or `table`, the lab's or plant's export as text."},"post":"/api/v1/dmr/fill","url":"https://passage-data.com/api/v1/dmr/fill","page":"https://passage-data.com/dmr/?permit=IN0050717"}]}